ALEXANDRIA, Va., July 21 -- United States Patent no. 12,685,806, issued on July 21, was assigned to UNIWERSYTET SLASKI (Katowice, Poland) and SLASKI UNIWERSYTET MEDYCZNY (Katowice, Poland).

"Blood oxygenator with an organic membrane" was invented by Grzegorz Brozek (Katowice, Poland), Tomasz Darocha (Dabrowa Gornicza, Poland), Jadwiga Gabor (Chorzow, Poland), Piotr Knapik (Katowice, Poland), Konrad Mendrala (Katowice, Poland), Katarzyna Mizia Stec (Katowice, Poland), Hubert Okla (Sosnowiec, Poland), Mateusz Przyblya (Swietochlowice, Poland), Szymon Skoczynski (Swietochlowice, Poland), Agnieszka Skoczynska (Ruda Slaska, Poland), Arkadiusz Stanula (Zory, Poland), Andrzej Swinarew (Myslowice, Poland), Ewa Trejnowska (Opole, Poland) and Michal...